Sash-holder



(ModeL) J. H. LYNCH. Sash Holder. No. 241,038. Patented May 3, I88I.

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IIHII HII | I I l I G 1 I l I I l l WITNESSES: INVBNTOR:'

N. PETERS. FhoIo-Uthcgrapher. Wnnhi lgIon. D. C.

tlnirnn States Patent @FHCE.

JOHN H. LYNCH, OF LOWELL, MASSACHUSETTS.

SASH-HOLDER.-

SPECIFICATION forming part of Letters Patent No. 241,038, dated May 3, 1881.

Application filed March 10, 1881.

To all whom it may concern Be it known that 1, JOHN H. LYNCH, of Lowell, Middlesex county, Massachusetts, have invented a new and Improved Sash-Holder, of which the following is a specification.

The object of my invention is to provide a new and improved device for holding a sash at any desired height.

The invention consists in a roller wheel pivoted in journals sliding horizontally in the lugs of a plate attached to the outersurface of one of the side rails of a sash, which wheel is pressed against the pulley-stile of the windowframe by a spring, and is provided on one of its sides with a ring of ratcliet-teeth,i\'hicl1 engage with like teeth of a peripherically-ratcheted wheel loosely mounted 011 the shaft of the rubber wheel, which ratchet-wheel is acted upon by a spring-pawl, that permits both the ratchet-wheel and rubber wheel to rotate when the sash is being raised, but locks'the ratchetwheel and the rubber wheel as soon as the sash is released, and thus holds the same in place; but if force is exerted the rubber wheel is disengaged from the ratchet-wheel and the rubber wheel can rotate, thus permitting the sash to descend.

In the accompanying drawings, Figure 1 is a longitudinal sectional elevation of my improved sash-holder on the line 3/ 3 Fig. 2. Fig. 2 is a rear elevation of the same; and Fig. 3 is a partial plan view and horizontal sectional view of the same on the line 00 m, Fig. 1.

Similar letters of reference indicate corresponding parts.

A wheel, A, provided with an outer ring, B, of rubber or analogous substance, is rigidly mounted on a shaft, 0, journaled in the boxes D D, connected at the rear ends by a crosspiece, E, and sliding in horizontal slots or grooves F in the lugs or jaws G G of a plate, H, which is fastened flush to the lower end of the outer surface of the side bar, J, of a sash, which side bar is mortised to receive the lugs G G. This plate H is provided with a longitudinal slot, K, through which the wheel A projects, as shown in Figs. 1 and 3. Aspring, L, is attached to a cross-piece, M, of the jaws G G, and this spring presses against the crosspiece E E of the journal boxes D D, and presses the wheel A against the pulleystile (Modeh) of the window-frame in the direction of the arrow a. The wheel H is provided at one side surface with a ring, N, of ratchet-teeth, which are not steep and have both sides beveled alike, which ring of ratchet-teeth engage with a like ring, 0, of ratchet-teeth on the side of a wheel, P, loosely mounted on the shaft G, provided with ratchet-teeth Q, on the circumference, and is pressed against the wheel A by a spring. Pt, resting against the inner surface of one of the lugs orjaws G. A pawl, S, is pivoted to a projection, T, of the crosspiece E of the journal-boxes D D, and the frontend of this pawl T is pressed upon the teeth Q of the wheel by a spring, U, attached to the crosspiece E; or the pawl S may be made of spring material and may be rigidly fastened to the projection T.

if the device is attached to the pulley-stile instead of to the sash-rail, it will have to be inverted.

The surface of the rubber B of the wheel A may be serrated, transversely grooved, or plain.

The operation is as follows: If the sash is moved upward, the friction of the rubber ring B will cause the wheel A to rotate in the direction of the arrow I), and the ratchet-wheel P will rotate with it. If the sash is released, its weight will tend to draw it downward, and the friction will tend to rotate the wheel in the inverse direction of the arrow 1) but the pawl S will lock the ratchet-wheel P and prevent it from rotating, and the sash is locked in its position; but if some force is exerted the teeth of the ratchet-rings N 0 will glide on each other, and the springRis flattened against the side of thejaw or lug G, and the wheel A can rotate in the inverse direction of the arrow I), permitting the window to descend. The sash can thus be held at any desired height. One of these devices is attached to each sash, or in case the sashes are very heavy a sash holder is attached to each end rail of the sash, or to the corresponding pulley-stile.

Having thus described myinvention, I claim as new and desire to secure byLetters Patent 1. A sash holder made substantially as herein shown and described, and consisting of a friction-wheel provided with ratchet-teeth on the side, engaging with teeth on the side of a circumferentially-ratcheted wheel loosely mounted on the shaft of the friction-wheel and 3. In it sash-holder, the ratchet-wheel P, conncted upon by a spring-paw], as set forth. strueted substantially as herein shown and de- 2. In a sashholder, the combination, with scribed, with circumferential ratchet-teeth Q, the slotted lugs G G of ap1ate,H, of the slidand with a ring, 0, of ratchet-teeth on one [5 5 ing journal boxes D, connected by a crossside, as set forth.

piece E the sprin L the pivoted Wheel A T journble d in the bo es D D, and provided with JOHN HENIA LYLCH ratchet-teeth on the side' of the eircumteren- Witnesses:

J OHN O. MURPHY.

to and the spring R, substantially as herein shown tially-ratcheted wheel I, the spring-pawl S, GEORGE W. HARRINGTON, and described, and for the purpose set forth. 

